Slub-catcher



SLUB CATCHER,

APPLICATION Een maso,

sied June 92@ 2 SHEETS-SHEET l.

F. WEBER. SLUB CATCHER. APPLICATION FILED AUG.30, |919.

2 SHEETS-SHEET 2.

Patented June 8 1920.

UNITED lr-"xrl-:iarOFFICE..

FRITZ WEBER, F NEW YORK, N. Y.

SLUB-CATCHER.

Specification of Letters Patent.

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Application filed August 30, 1919. Serial No, 320,907.

l new and Improved Slub-Catcher, ofwhich the following is a full, clear, and exact descriptlon. 1

Th's invention relates to improvements 1n slub catchers, and more particularly to a device which is designed to prevent the passage of slubs, knots and the like, which are formed on thread, cord, yarn, or any similar material and which prevent the proper pas sage of the cord through the eye of a needle or through weaving or knitting mechanisms of any sort, an object of the invention being to provide a device which is operated by a slub or knot and which serves to sever the `thread and prevent the passage of the slub or knot to the bobbin or other device on which the thread is to be wound. Y

A further object is to provide a device of the character described which can be adjusted to accommodate any thickness of thread or cord and whichcan be made as sensitive as desired so that the slub or knot in a very weak thread will operate the device. V

With these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a view in side elevation illustrating myV improvements;

Fig. 2 is a top plan view;

. Fig. 3 is a view in section on the liney 3-3 ot Fig. 1; and

view in section on uide 4 movesover a stationary cutter or blade 6 and thence through a guide 7 on the base 1. A'movable cutter or blade 8 is pivotally connected to the bracket 2 by means of a screw 9 and has a finger hold 10 at one ,end to facilitate the movement of the cutter.

A wire spring 11 has its intermediate coiled portion secured to the bracket 2 by means of a screw 12 'and one end of the wire spring is positioned against a fixed pin 13 onthe bracket 2. The other end of the wire spring 11 engages a pin 14 on the cutter 8 and operates to force the cutter downwardly and sever the thread 5 whenever such movement of the cutter is permitted. The downward movementof the cutter is limited by a stop screw 15 which also serves to hold the stationary cutter against the bracket 2.

An arm 16 projects upwardly from the bracket 2 and is pivotally connected to the bracket by means of a screw 17. This arm 16 has a lug 18 which is normally positioned in front of the upper free end of the cutter 8 and serves to hold the cutter against downward movement. A trigger 19 is pivotally connected to tlie arm 3 by means of a screw 20" and is connected at its upper end with the upper end of the arm 16 by means of a link 21. A plate 22 is adjustably held beside the trigger 19 and forms a part of the trigger and a set screw 23 is provided to effect the adjustment of the plate 22,this screw 23 having threaded engagement with the trigger 19, as shown clearly in Fig. 4.

A coiled spring 24 is positioned varound the screw 23 and located in recesses 25 in plate 22 and trigger 19 respectively and eX- erts an outward pressure on the plate tending to hold the latter properly spaced from the tri` yger so as to provide just the proper space or the passage of the thread 5. A; pair of dowel pins 26 are fixed to the plate 22 and movable in openings 27 in the trigger 19 to maintain the plate in proper alinement with the trigger.

When a slub 23 or knot on the thread contacts with the trigger 19, it will cause the trigger to have a pivotal movement, and, through the medium of link 21, will move the arm 16 releasing the cutter 8, when the latter will move downwardly and sever. the thread.

To adjust the position of the lug 18 in front' of the cutter and thereby render the release of the cutter as sensitive as desired,

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an adjustable plate 29 is mountedI on the arm 3 and securedY by a set ,screw 30 which projects through a slot 3l in the plate and is screwed into the arm. An upwardly projecting extension 32 is provided on one end of the plate 29 and has a laterally projecting lug 33, which limits the movement of the arm 1G in one direction. Hence, by adjusting the plate 29, the lug 18 can be projected as far over the end of the cutter 8 as may be desired. A linger hold 34 is pros vided on the endof plate 29 to facilitate its adjustment.

It will thus be noted that with my improved device it is impossible for a knot or slub to pass the trigger and when in contact with the .trigger a continued movement of the thread will cause the release of the cutter 8 and sever the thread.

Various slight changes may be made in 'described Without departing from the invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such changes and alterations as airly fall within the spirit and scope i of the appended claims.

- prising a spring pressed cutter, a movable I claim:

1. A device of the character stated,4com

prising a cutter, a movable member normally holding the cutter out of operation, a trigger located in the path of movement of the thread, and a link `connecting the trig ger and the movable member.

2. A device of the character stated, comprising a cutter, a movable member normally holding the cutter out of operation, a trigger. located in the path of movement of the thread, a link connecting the trig er and the movable member, and means for limiting the movement of the movable member in one direction. Y

3. A device of the character stated, commember normally holding the cutter outof operation, an adjustable device controlling the position of said member, and a trigger located in the4 path of the thread'and op- ,erativelyconnected to the member.

4. A' device. of the character stated, comprising a spring pressed cutter, a movable member normall holding the cutter out of operation, an adsjustable device controlling the position of said member, a trigger located in the path of movement of the thread, and a link connecting the trigger and said member.

`5. A device of the character stated, com-v prising a spring pressed cutter, a frame normally holding the cutter out of'operation, a

pivotally supported trigger located in theA path `of movement of the thread, and a link connecting one end ofthe trigger'with the frame.

comprising a support, guiding means on the support for a thread, a spring pressed cutter adapted to sever the thread, a pivoted arm normally holding the cutter out of operation, a pivoted trigger, 'a link connecting the trigger and the. arm, a plate on the trigger spaced from the trigger and providing a passage for the movement of the thread, and means for adjusting the plate relative to the trigger.

-7. A device of the character described, comprising a support, guiding means on the support for a thread, a spring pressed cutter adapted to sever the thread, a pivoted arm normally holding the cutter out of operation, a pivoted trigger, a link connecting the trigger and the arm, a plate on the trigger spaced from the trigger and providing a passage for the movement of the thread, means for adjustingthe plate relative to the trigger, a spring holding the plate and trigger spaced apart, and doWel pins connecting the plate and the trigger and guiding the movement of the plate.

8. A device of the character stated, comprising a support, thread guiding means on the support, a spring pressed cutter adapted to sever the thread, av triggerV controlled arm operated by a slub or knot'n the thread to release the cutter, a lug on the arm normally positioned in front'of the cutter and holding it out f operation, and adjustable means on the support limiting the movemen pf the arm in one direction, whereby the positionof the lug may be adjusted to render'the release of the cutter as sensitive as desired.

9. A device of the character stated, comprising a support,'thread guiding means on the support, a spring pressed cutter adapted to sever the thread, a trigger controlled arm operated by a slub or knot on thethread to release theJ cutter, a lug on the arm normally positioned in front of the cutter and holding it out of operation, a plate adjustable on the support, and a lug on the plate limiting the movement of the varm 1n a dlrection to hold the cutter out of operation.

10. A device of the character stated, comprising a support, thread guiding means on lthe support, a spring pressed cutter adapted movement, an extension on the plate, and a lug on the extension limiting the movement of the arm 1n one dlrectlon.

FRITZ WEBER. 

